Preserve-jar



(No Model.)

H. L. MARTYN 8: W. D. LEDNUM.

PRESERVE JAR. No. 450,827. PatentedApr.Z1, 1891.

UNITED, STATES PATENT OFFICE.

HENRY L. MARTYN AND IVILLIAM D. LEDNUM, OF PHILADELPHIA, PENNSYLVANIA.

PRESERVE=JAR.

SIECIFICATION forming part of Letters Patent No. 450,827, dated April21, 1891.

. Application filed February 12, 1891. Serial No. 381,145. (No model.)

To aZZ whom it may concern-.-

Be it known that we, HENRY L. MARTYN and WILLIAM. D. LEDNUM, citizens ofthe United States, both residing in the city and countyof Philadelphia,State of Pennsylvania, have inventedanew and useful Improvement inPreserve Vessels or Jars, which improvement is fully set forth in thefollowing specification and accompanying drawings.

Our invention consists of a preserve vessel or jar having a cap withgrooves on the inner face thereof for engagement with lugs on the neckof the vessel or jar, said neck having also a groove forming a seat fora gasket, which is compressed by the rim of the cap in a direction ator'about a right angle to the vertical axis of the jar, as will behereinafter set forth.

Figure 1 represents a perspective view of a preserve vessel or jarembodying our in vention. Fig. 2 represents a vertical section of aportion thereof on an enlarged scale.

Similar letters of reference indicate corresponding parts in the twofigures.

Referring to the drawings, A designates a preserve vessel or jar,preferably made of glass, as usual in such cases.

B designates the neck of the jar, the same having on the exteriorthereof the outwardlyprojecting lugs C, the faces D whereof are rounded,inclined, or otherwise shaped.

E designates the cap of the jar, the same having a rim F, adapted toencircle the neck of the jar, the inner face of said rim being formedwith inclined or spiral grooves G, which are open at the bottom, so thatthe lugs C may enter said grooves G, as will be hereinafter more fullydescribed.

On the exterior of the neck Bis agroove H, in which is seated thepacking or gasket J, formed of soft rubber or other suitable material,the same being adapted to be compressed by the rim F, so as tohermetically seal the jar, for which purpose the rim is flaring orwidening from top to bottom, so as to present an inclined face to saidgasket.

The operation is as follows: lhe cap is presented to the neck of thejar, so that the lugs D register with the bases of the grooves G andenter the same. The cap is rotated, whereby the walls of the groove Grride upon said lugs D, and owing to the inclined or spiral nature ofsaid grooves the cap is forced downwardly and interlocked with the neck.In the descending motion of the cap the flaring face of the rim Fpresses laterally or inwardly against the gasket, thus graduallycompressing the same and forming a tight joint between the neck and rim,whereby the jar is reliably sealed. It is evident that when the cap isrotated in reverse direction itis released from the holding action ofthe lugs, when it may be readily removed from the jar.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-- M 1. A jar with lugs on the exteriorportion of the neck thereof and a closing-cap with grooves in theinterior surface of its rim, said jar having a groove in the side of itsneck, receiving a gasket, which is compressed inwardly in lateraldirection by the action of said rim, substantially as described.

2. A jar with lugs on the exterior of the neck thereof and acircumferential groove therein, a gasket adapted to be seated in saidgroove, and a cap having a flaring rim with interior grooves to engagethe lugs on the neck of the jar, whereby the gasket is compressedinwardly in lateral direction against the neck, substantially asdescribed.

HENRY L. MARTYN. IVILLIAM D. LEDNUM. Witnesses:

JOHN A. WIEDERsHEIM, M. C. PEARCE.

